174BH Interior Lights Issue
We recently purchased a 2016 Jayco 174BH. Had it out this weekend and strange thing happened to interior lights. When plugged into power supply at campground, the radio stopped working in the afternoon on Monday and then that evening the lights started going haywire. Would turn on the main light switch and one light of the three would turn on. Would turn on one and another would go out. Or, get all three on and after a while, the one by the bunk would go out. If you turned on the outside light, the interior lights would go out. Very strange. However, microwave, fridge and AC unit work just fine.
When it is not plugged in and running off battery power, there is no issue. Very strange. Have a call into service department but they can't get to it for a while.
Any information, help, insight would be greatly appreciated.